SPEARMAN, TEXAS

Monthly Total Heating Degree Days

(418523)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 200309
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1920 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1921 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1922 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1923 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1924 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1925 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1926 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1927 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 s 4.50 36.50 h 135.50 405.00 962.00 1507.00
1928 797.00 755.00 525.00 372.50 97.00 26.50 0.00 6.50 29.00 228.00 653.00 832.50 4322.00
1929 1007.50 1022.50 561.50 224.50 151.00 0.00 0.00 0.00 f 45.50 219.00 874.00 819.00 4924.50
1930 1232.50 480.50 682.50 147.00 71.50 0.00 0.00 0.00 19.50 280.00 535.00 914.50 4363.00
1931 826.00 568.30 a 708.23 e 338.00 172.50 0.00 0.00 0.00 2.50 176.00 582.50 771.00 4145.03
1932 978.00 562.00 743.00 283.50 75.50 3.00 0.00 0.00 36.00 240.00 601.00 1147.00 4669.00
1933 731.60 a 857.50 515.50 324.00 75.00 0.00 0.00 0.00 0.50 147.00 482.00 631.00 3764.10
1934 785.50 657.50 530.50 193.50 49.00 0.00 0.00 0.00 42.50 84.00 445.00 791.50 3579.00
1935 857.00 638.50 335.50 262.00 224.23 a 17.50 0.00 2.50 57.50 167.00 686.00 906.00 4153.73
1936 1014.00 1044.50 445.00 281.00 52.00 0.50 0.00 0.00 107.50 404.50 0.00 z 898.50 4247.50
1937 1256.50 792.50 745.00 0.00 z 5.00 g 6.50 0.00 0.00 10.00 194.00 559.50 846.50 4410.50
1938 773.93 b 385.00 g 351.50 343.50 106.00 0.00 0.00 0.00 10.50 163.50 684.00 805.00 3237.93
1939 792.00 929.00 545.00 295.00 67.00 0.00 0.00 0.00 24.50 192.50 603.00 804.50 4252.50
1940 1401.00 772.50 572.50 323.50 52.00 8.00 0.00 0.00 27.50 104.50 687.50 784.00 4733.00
1941 913.00 749.00 743.00 326.50 91.50 14.50 0.00 0.00 61.00 0.00 z 569.00 829.50 4297.00
1942 998.50 845.50 662.50 283.00 169.50 13.00 0.00 0.00 71.50 222.00 478.00 846.00 4589.50
1943 862.32 a 599.50 714.50 156.50 169.50 0.00 0.00 0.00 3.00 198.50 592.00 1114.50 4410.32
1944 1129.00 723.50 656.00 390.50 102.00 5.00 1.00 0.00 29.50 238.50 596.50 985.50 4857.00
1945 923.00 752.00 516.50 446.50 149.50 18.00 4.00 2.50 85.00 242.00 594.50 1025.00 4758.50
1946 954.00 690.50 502.50 141.00 135.00 0.00 z 0.00 5.50 56.50 253.00 635.00 750.00 4123.00
1947 1003.00 880.00 749.00 412.50 159.00 22.50 0.00 0.00 30.00 42.00 g 790.00 904.50 4950.50
1948 1079.32 a 956.44 c 876.78 a 244.14 a 115.00 0.50 0.00 0.00 49.00 263.50 725.50 848.50 5158.68
1949 1275.50 812.50 665.00 383.00 95.50 3.50 0.00 0.00 39.50 270.50 435.50 914.00 4894.50
1950 969.78 a 661.00 680.00 344.00 103.50 15.00 2.00 10.50 48.00 105.00 674.50 902.00 4515.28
1951 986.00 755.00 699.50 418.50 110.50 30.00 0.00 2.50 67.50 261.50 752.50 897.50 4981.00
1952 738.00 664.93 a 692.50 329.00 101.50 0.00 4.00 0.00 32.00 279.50 710.00 1021.00 4572.43
1953 734.00 741.00 451.00 389.00 203.50 0.00 3.50 0.00 19.00 226.50 628.00 965.50 4361.00
1954 980.00 558.50 728.00 205.00 208.00 8.50 0.00 0.00 3.00 239.00 475.50 799.50 4205.00
1955 916.00 836.00 600.50 231.50 45.00 22.00 0.00 0.00 52.00 188.00 666.50 862.50 4420.00
1956 918.50 911.50 566.00 322.00 51.00 1.50 0.00 15.50 14.50 121.00 655.50 768.50 4345.50
1957 1006.50 600.50 657.00 413.50 176.00 39.00 0.00 0.00 57.00 313.00 708.00 724.50 4695.00
1958 938.00 797.00 940.00 421.00 75.00 14.00 0.00 0.00 26.50 230.50 568.50 904.50 4915.00
1959 1088.00 759.50 641.00 362.50 73.00 2.00 1.00 0.00 37.00 336.00 737.50 786.50 4824.00
1960 1031.00 933.50 766.00 198.00 93.00 1.50 8.00 0.00 30.50 230.50 548.50 928.00 4768.50
1961 963.50 725.76 c 363.50 p 343.33 c 57.00 s 0.00 z 0.00 s 0.00 z 0.00 z 0.00 z 273.50 t 963.87 d 2996.46
1962 875.00 f 403.00 h 618.21 e 154.00 k 27.50 n 3.00 t 0.00 z 0.00 z 13.00 h 158.00 536.00 750.00 2062.21
1963 1165.50 608.00 392.50 111.21 a 46.00 0.00 0.00 0.00 10.00 41.50 462.00 1008.50 3845.21
1964 834.50 941.50 619.00 170.50 39.00 6.00 0.00 0.00 39.00 183.93 a 627.00 e 885.50 4345.93
1965 757.43 a 750.50 818.00 169.50 51.67 a 1.50 0.00 0.00 a 68.04 b 204.50 402.32 b 710.50 3933.96
1966 1111.00 845.00 459.00 291.00 85.00 0.00 t 0.00 11.50 22.50 252.50 475.86 a 929.00 4482.36
1967 772.00 681.00 371.00 134.00 136.92 a 5.00 0.00 4.00 21.00 161.00 582.00 898.00 3765.92
1968 841.50 786.00 481.00 259.14 a 131.00 0.00 0.00 2.50 14.00 161.00 643.50 945.50 4265.14
1969 779.00 703.63 a 858.50 185.89 b 58.00 19.50 0.00 0.00 d 7.00 379.50 607.50 838.55 a 4437.07
1970 987.00 598.00 751.50 315.00 56.66 b 32.50 3.00 0.00 40.86 a 347.72 a 566.00 690.50 4388.73
1971 892.50 732.50 525.00 253.00 73.50 0.00 0.00 0.00 96.00 183.00 539.00 816.00 4110.50
1972 884.50 615.50 332.00 149.50 58.50 0.00 5.00 0.00 32.50 256.00 822.50 1027.50 4183.50
1973 1034.00 675.50 527.50 391.50 96.00 0.50 0.00 0.00 61.50 140.00 484.00 848.00 4258.50
1974 1017.50 587.50 372.50 170.50 18.50 1.00 0.00 0.00 87.50 169.00 562.00 865.50 3851.50
1975 861.50 830.50 560.00 273.50 45.00 9.50 0.00 0.00 64.50 154.50 615.50 739.00 4153.50
1976 837.00 a 472.50 484.00 184.50 132.00 0.00 0.00 0.00 40.50 388.00 674.50 797.00 4010.00
1977 1120.50 576.00 470.50 187.00 9.00 0.00 0.00 0.00 1.00 163.00 531.50 756.50 3815.00
1978 1118.00 1008.50 484.00 135.00 144.50 2.00 0.00 0.00 37.00 181.00 550.00 931.00 4591.00
1979 1257.00 736.00 475.00 272.07 a 113.00 29.00 0.00 0.00 15.00 125.50 682.00 752.50 4457.07
1980 904.00 738.50 563.00 299.00 109.50 1.00 0.00 0.00 22.00 226.50 571.00 716.50 4151.00
1981 786.00 578.50 489.00 98.50 82.50 0.50 0.00 0.00 22.00 240.00 485.50 785.00 3567.50
1982 846.50 846.50 517.50 250.50 51.00 15.00 0.00 0.00 8.50 196.50 573.50 852.00 4157.50
1983 887.00 767.00 614.50 402.00 127.00 22.50 0.00 0.00 26.00 157.00 487.50 1246.50 4737.00
1984 973.50 604.50 615.00 387.00 0.00 z 0.50 0.00 0.00 107.00 276.00 527.50 814.00 4305.00
1985 1011.50 779.00 474.50 184.00 34.50 12.00 0.00 0.00 82.00 185.50 623.00 918.00 4304.00
1986 605.00 634.50 301.00 126.00 45.50 0.00 0.00 1.00 9.00 236.00 594.50 830.00 3382.50
1987 893.50 612.00 589.00 266.50 37.00 0.50 0.00 0.50 10.00 189.00 534.50 872.00 4004.50
1988 1029.50 718.00 581.00 277.00 83.00 2.50 0.00 3.50 26.50 202.50 468.00 734.50 4126.00
1989 714.50 924.00 416.50 192.50 55.00 18.00 0.00 0.00 85.00 160.50 441.00 997.00 4004.00
1990 773.00 657.00 511.50 219.50 110.50 0.00 1.00 0.00 9.50 173.00 410.50 951.50 3817.00
1991 981.50 485.50 399.00 179.00 32.00 0.00 0.00 0.00 30.50 215.50 636.50 751.00 3710.50
1992 740.00 542.50 374.50 179.50 76.50 8.50 0.00 4.00 1.50 138.50 705.00 900.00 3670.50
1993 1004.00 741.50 529.00 262.00 50.50 2.50 0.00 1.00 20.00 261.00 616.50 718.00 4206.00
1994 827.00 759.50 483.60 a 212.50 61.50 0.00 0.00 0.00 29.50 160.00 504.00 636.50 3674.10
1995 754.50 541.00 515.50 303.00 148.50 6.50 0.00 0.00 59.00 149.00 413.00 819.50 3709.50
1996 842.50 601.50 578.50 189.50 15.50 0.00 4.00 0.00 38.00 174.00 516.00 789.50 3749.00
1997 854.00 723.00 379.50 437.00 68.00 0.50 0.00 3.00 24.00 214.00 594.00 924.00 4221.00
1998 726.50 586.00 636.50 286.00 12.50 14.50 0.00 0.00 2.00 90.50 362.50 767.50 3484.50
1999 714.00 429.50 521.50 255.00 73.50 5.00 0.00 0.00 35.00 149.50 285.50 702.00 3170.50
2000 695.00 0.00 z 367.00 141.00 35.50 1.00 0.00 0.00 28.50 97.00 602.50 886.00 2853.50
2001 839.00 690.67 a 513.00 89.00 42.00 0.00 0.00 0.00 11.00 92.50 291.00 630.50 3198.67
2002 736.50 605.50 486.00 149.50 37.00 0.00 0.00 0.00 1.50 0.00 z 0.00 z 846.00 2862.00
2003 723.00 692.50 417.50 164.50 27.00 6.50 0.00 1.00 19.50 0.00 z 0.00 z 0.00 z 2051.50
Period of Record Statistics
MEAN 919.89 718.35 563.21 261.51 87.90 6.90 0.49 1.11 35.01 202.61 574.58 854.35 4205.01
S.D. 157.88 136.34 138.65 94.22 49.80 9.49 1.42 2.78 26.46 71.46 113.67 114.21 449.73
SKEW 0.65 0.29 0.40 0.16 0.73 1.48 3.29 3.33 0.91 0.59 -0.08 0.65 -0.18
MAX 1401.00 1044.50 940.00 446.50 224.23 39.00 8.00 15.50 107.50 404.50 874.00 1246.50 5158.68
MIN 605.00 429.50 301.00 89.00 9.00 0.00 0.00 0.00 0.50 41.50 285.50 630.50 3170.50
NO YRS 75 73 75 74 72 72 74 74 74 72 73 76 62